Properties of the Number 99012

Ninety-Nine Thousand Twelve

Basics

Value: 99011 → 99012 → 99013

Parity: even

Prime: No

Previous Prime: 98999

Next Prime: 99013

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 37 × 223

Divisors: 1, 2, 3, 4, 6, 12, 37, 74, 111, 148

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11000001011000100

Octal: 301304

Duodecimal: 49370

Hexadecimal: 182c4

Square: 9803376144

Square Root: 314.6617231250093

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

a(n) = T(n,n-4), array T as in A055818. A55821

Sum of the seventh powers of the parts in the partitions of n into two parts. A294274

a(n) = ∑_k=0..n Stirling2(n,k) * binomial(3·k,k) / (2·k + 1). A346764

Triangle read by rows, related to A108283. A108284

Number of 3Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 1 0 1 vertically. A207026

Numbers n such that n | sigma₁₂(n) + φ(n)¹². A55706

a(n) = 3^n-1*Fibonacci(n). A99012

T(n,k) = Number of n X k 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 1 0 1 vertically. A207024